--- /dev/null
+<?php
+
+namespace Drupal\Tests\taxonomy\Kernel\Plugin\migrate\source\d6;
+
+use Drupal\Tests\migrate\Kernel\MigrateSqlSourceTestBase;
+
+/**
+ * Tests d6_term_node source plugin.
+ *
+ * @covers \Drupal\taxonomy\Plugin\migrate\source\d6\TermNode
+ * @group taxonomy
+ */
+class TermNodeTest extends MigrateSqlSourceTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = ['taxonomy', 'migrate_drupal'];
+
+ /**
+ * {@inheritdoc}
+ */
+ public function providerSource() {
+ $tests = [];
+
+ // The source data.
+ $tests[0]['source_data']['term_node'] = [
+ [
+ 'nid' => '1',
+ 'vid' => '1',
+ 'tid' => '1',
+ ],
+ [
+ 'nid' => '1',
+ 'vid' => '1',
+ 'tid' => '4',
+ ],
+ [
+ 'nid' => '1',
+ 'vid' => '1',
+ 'tid' => '5',
+ ],
+ ];
+ $tests[0]['source_data']['node'] = [
+ [
+ 'nid' => '1',
+ 'vid' => '1',
+ 'type' => 'story',
+ 'language' => '',
+ 'title' => 'Test title',
+ 'uid' => '1',
+ 'status' => '1',
+ 'created' => '1388271197',
+ 'changed' => '1420861423',
+ 'comment' => '0',
+ 'promote' => '0',
+ 'moderate' => '0',
+ 'sticky' => '0',
+ 'tnid' => '0',
+ 'translate' => '0',
+ ],
+ ];
+ $tests[0]['source_data']['term_data'] = [
+ [
+ 'tid' => '1',
+ 'vid' => '3',
+ 'name' => 'term 1 of vocabulary 3',
+ 'description' => 'description of term 1 of vocabulary 3',
+ 'weight' => '0',
+ ],
+ [
+ 'tid' => '4',
+ 'vid' => '3',
+ 'name' => 'term 4 of vocabulary 3',
+ 'description' => 'description of term 4 of vocabulary 3',
+ 'weight' => '6',
+ ],
+ [
+ 'tid' => '5',
+ 'vid' => '3',
+ 'name' => 'term 5 of vocabulary 3',
+ 'description' => 'description of term 5 of vocabulary 3',
+ 'weight' => '7',
+ ],
+ ];
+
+ // The expected results.
+ $tests[0]['expected_data'] = [
+ [
+ 'nid' => 1,
+ 'vid' => 1,
+ 'type' => 'story',
+ 'tid' => [1, 4, 5],
+ ],
+ ];
+
+ // Set default value for expected count.
+ $tests[0]['expected_count'] = NULL;
+
+ // Set plugin configuration.
+ $tests[0]['configuration'] = [
+ 'vid' => 3,
+ ];
+
+ return $tests;
+ }
+
+}